Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1643758 | Materials Letters | 2014 | 4 Pages |
•Electrochemical etching nitinol wire presented nanoporous structures.•Nanoporous structure with average diameter of 100 nm.•The etched nanoporous wire has enhanced superior capacitance performance.
In this study, porous Ti/TiO2 network nanostructures with high surface areas were fabricated by electrochemical dealloying. TiO2 has been investigated as supercapacitor electrodes, while a major disadvantage of TiO2-based supercapacitors is their low specific stored energy. In this work, nanostructured Ti/TiO2 composites were fabricated, which could accumulate large quantity of electrons and energy for supercapacitor needs. Such porous nanostructures form a highly conductive metal network with bicontinuous open. Nanoporous Ti/TiO2 has enhanced charge/discharge behavior and a superior capacitance performance with specific capacitance of 35.5 F/g.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide